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3/7/2019 


Non-Directional Beacon (NDB) Photo Gallery 1984-2018 - Stephen P. McGreevy, N6NKS 


This is a safe-site/page: (no cookies/no tracking/no ads/no social-media links, etc.) Purposely written in basic HTML level 2.0+ by SpMcGreevy (THIS PAGE IS BEST VIEWED ON A LARGE-SCREEN iMac w/OS-X/MacOS 10.11.6>10.13.x) 


Non-Directional Beacon (NDB) Photo Gallery 
By Stephen P. McGreevy - N6NKS 

Updated 07 March 2019: Many images re-scanned and vastly improved; All images now auto-load inline; more NDBs from the 1980s 
and also two MWBCB transmitter-site-photos have been added (former 1510 KTIM-San Rafael, CA; former 1610 TIS Point Reyes 

National Seashore-North Beach) 



{former) 375 EMC Wim 
Nevada - June 1987 - Sf 


The former 25-watt, 375 kHz " EMC" - Winnemucca, Nevada (off-air since 2002). Photo by Stephen P. McGreevy, June 1987. Winnemucca Mountain is in the 

distant background. 

Non-directional beacon (NDB) photography: The following is a gallery of non-directional beacon (NDB) photos taken during several road-trips between 
May 1984 and December 2008, mainly of NDB's in the West, Intermountain regions, and High Plains/Prarie regions of Canada and the United States. There 
are also photos of other longwave installations, too. Probably over 2/3rds of the U.S. NDB's pictured here are now off-the-air, so these photos can be 
considered historical, especially for DXers who have logged them in the past when NDB-band-density was vastly-higher, pre-GPS implementation. 


Very useful NDB identification and logging websites: 

The NDB List Website 

Martin Francis - Extremely Detailed NDB DX Website (includin g NDB Lo g Database bv re g ion and NDB identification database bv re gion) 
William Hepburn's NDB Listin g 

B v Mark (AF6IM) - Great article about maritime Navi g atin g in the 60's and 70s with surplus avation nav. g ear 
November 2010 MW DXpedition to Oahu . Hawaii - also has mv Lon g wave Recordin g s Winter 2010/11 
Robert Connellev's Northern Ireland NDB DX website (GI7IVX ) 


http ://ww w.auroralchorus .com/ndb/ndbgllry .htm 


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G4UC . T's Excellent Beacon Website (with lo gs) 

Great article about NDB navi g ation techniques 



309 


289 


299 


uacc 


Map of US DGPS data-stations by frequency in kHz and location (generally uninteresting FSK at 100 or 200 baud unless you're into decoding these things, 
but they are/were useful for signal-propagation observations). Many/most are off-air late 2017 now (all but the BLUE-marked USCG DGPS beacons are 
off-air in 2018, now freeing up many NDBs into audibility again! Example - the lovely 305 RO-NM/ONO-OR Mixture is in the clear now - Bakersfield's 305 
kHz DGPS for the (Caltrans)(CA-DOT) is off-air now, as is Essex 298 photo way-below.) 


302 

itobiniar * 4 

323 316, 


f Applets 

300 


310 

29 1 Kla#n atn?aift 
cape MKutocirra* 

318 312 

J1B + Ai, .Ur 

i, .11 -51 A 


^ Bill mas 

313 




Wed of a 

* 325 


kV tuf 

* 310 


Upoee KMfrmaw 

298 


298 

Wisconsin Point 


314 

317 sian^n 8*u **«*€*. 29 

I Tounyttoirti 316 

304 Saqmi&W 322 324 ' 

ftocfc I stand Ub-quon Mudaon f 306 

Ofnaha 341 319 AduclvnfK 

298 utlrft " 293 

Ur»N< Hr-. 


Picldarfl 

309 

292 

Oif^igrin 


Pcnotrccot 

290 


293 

• Moriches 


hi-" # 3i4 

£87 p .n- .111 Piiir : 


5E Mary s Haq train mr 

295 1 307 * 


plV TB1 -uj— L 

m .- - 

^ L!I " 291 ‘ 318 


Loui^vvtle 

290 


AnnapaOi 

301 


i Reedy Pofnl 

309 


HarTtWfl* _ . 

317 * 1 305 *303 

riift-Ti-tEii.- * 294 

H^chMiuri] HwwBtrin 

1 307 

320 f 

319 Savannah 


Anqlcion 

301 


Cnf|ii»h Tum 

293 


304 


'Cape Canaveral 

289 


USAGE 


^/asfca 


288 

K*f Wect ♦ 


Card Sound 

O'! A 


Koflmfc 

313 


K * L. - - .4 i ! 

300 


CcM Bay 

* ♦' 289 


Sknloi Island V J 

305 ♦ tfl^Hadincl 

■ 295 

323 

Arnett# Island 


Hawaii 


286 

UpfMu Poml 


Pahoa 

290 


Map of US DGPS stations 
Frequency data 

compiled by Stephen P. McGreevy 


Auroral Chorus Home Pa ge 


Iceland: 


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3/7/2019 Non-Directional Beacon (NDB) Photo Gallery 1984-2018 - Stephen P. McGreevy, N6NKS 



355 RK Reykjavik, Iceland is located at a golf course on the tip of the Seltjamarnes Peninsula in Seltjarnarnes, Iceland, a suburb of Reykjavik to the west of the 


downtown CBD. This beacon employs a two-guy-cable-supported "T" antenna (Marconi type) consisting of a single cable up-lead and flat-top section. Photo taken 
by Stephen P. McGreevy 09 December 2016 on a long walk and during a 12-day natural ELF-VLF research trip and a FW/MW DXpedition, also. RK is 1020 Hz 
ident-tone USB only (at the time of my visit), with a USA-style ident (no DAID). I was staying in a private apt. 10 km from this beacon, and on this fine, mild day, I 
walked to the Seltjarnarnes Nature Preserve and golf course in Seltjamarnes, Iceland. As I loved the long nights replete with full-moonlight and loads of pretty 
Christmas Fights, and I saw three nights of level 2-3 aurora... as such, I was extremely pleased and hugely enjoyed my visit and consulting-time there. The first 
overseas NDB I have visited. Initially, I heard it on an EFF rx. as it was nearby my listening spot. Curious, the next day I walked to this beacon. Next to it to the east 
about 100-meters away is a vertical, self-supported lattice-mast near-identical to 320 YQF Alberta, Canada and 254 SPK Nevada but also included an elevated- 
counterpoise very similar to 320 HTN (pics below, and the former RK-mast is very visible on Google Earth/Apple Maps). That was the former NDB for RYK 
(airport), now this 355 kHz 'RK' unit and antenna seen at the golf course. Parking is just 100m away, and this is an easy NDB to visit and is in a lovely coastal 
peninsular location! 


Canada: 


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Non-Directional Beacon (NDB) Photo Gallery 1984-2018 - Stephen P. McGreevy, N6NKS 


368 SX Cranbrook (Skookumchuck), British Columbia. Tall vertical mast antenna. Beautiful Autumn foilage next to the beacon, with the a bit of the Canadian Rocky 
Mountains visible in the background. Gail and I spent many hours trying to find this beacon! High-power and located well away from the main Highway 93. A strong 
signal in California but often battling it out with stronger ZP Sandspit, B.C. - (both were 1020 Hz USB pitch modulation when I wrote this in 1999, now SX and ZP 
are 400 Hz pitch modulation as of 12/05 - monitor 368.4 kHz). S. McGreevy, photo taken September 1993. 368_sx.jpg, 62,466 bytes. 


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Dafoe, Saskatchewan. Medium-height, guyed antenna mast (mimicking a small mediumwave BCB station operating around 1600 kHz). Photographed near sunset as 
we drove right by it, I didn't immediately recognize it as an NDB, and we kept on driving for a few km before I thought to check the longwave portable to see if was 
an NDB - sure enough, it was (!), so we drove back to take pictures. VX is located far from any airport, etc., in a field with nothing else around. While we visited this 


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Non-Directional Beacon (NDB) Photo Gallery 1984-2018 - Stephen P. McGreevy, N6NKS 

beacon, the skies were full of migrating flocks of Canada Geese! I've heard this one in here California (400 Hz pitch USB modulation - monitor 368.4 kHz 
narrowband CW/SSB mode). McGreevy, September 1993. 368_vx.jpg 32,727 bytes. 


Ip! 368_usb_1 laprill 

I1_STE-G39.wav 

EH 

File Variables Pointers 

Help 







368 kHz USB-mode, TS480, Yaesu FRT-7700 preselector/preamp, loop oriented north/south 
by Stephen R. McGreevy 11 Aprilll at 1216 UT - Keeler, California 


370.0 cluster - TVY-UTAH and ITU-Montana LSB idents 




353 - 5E (later "5F"), Fox Creek, Alberta. Just another example of a typical low-power 
(usually 25-watt) Canadian number/letter ident beacon usually found at small airports (see 328 5J photo just below). I photographed this one from afar, through 
binoculars, from the entry road to the airport, being on my way south on Hwy 37 with the goal of Waterton Park in southen Alberta at the end of the day (and it was 
threatening to rain). S. McGreevy, June 1996. 5E_353.jpg 28,855 bytes. (SINCE THIS PHOTO WAS TAKEN 5E CHANGED IDENTS TO "5F") 


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353 lid hi and 5f alta 25feb11 

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CifQoti fifths 

* 7-^3 




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I 328 - 5J, Coronation, Alberta. A good close-up of another small, 
privately-owned number/letter beacon. Metal lattice mast and self-supporting 6-spoke umbrella top-hat with wire skirt and two red marker lights. Occasionally heard 
in California, weakly, when conditions are good (monitor 328.4 kHz in narrowband CW/SSB mode). S. McGreevy, September 1993. 5J_328.jpg 36,049 bytes. 








236 8G Stettler, Alb#rta - September 1993- 5PMcGree\ry 


September 1993 - Another letter/number beacon we stopped by to visit on the Sept. 1993 trip. 


- 286 8G Stettler, Alberta - 



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224 DM Dauphin, Manitoba, Canada - September 1993 - SPMcGreevy 



224 DN - Dauphin, 


Manitoba. This beacon is a fine example of a Canadian NDB employing a medium-height lattice antenna mast and drooping wire-capacitance tophat/umbrella (a 
mini-version of former Omega-D North Dakota and many Loran-C installations!). This (400 Hz USB ident modulation pitch) beacon was spied right along the 
Highway south of Dauphin - we were not DFing it. I've heard this one in California regularly when conditions to Canada are good (monitor 224.4 kHz in narrowband 
CW/SSB mode). S. McGreevy, September 1993. DN_224.jpg 32,757 bytes. 


'yjp 

!av; 


M5 - 306, Manning, Alberta (McGreevy 6/96) 


■ 307 M5 - Manning, Alberta. Very similar installation to 5E and 5J above. I saw 
this one at the airport right next to the Mackenzie Highway as I was traveling southward, and turned off the highway into the airport to take this photo in the rain. I 
didn't know what this beacon was until I checked my Sony portable. Seemed a weak signal even close. S. McGreevy, June 1996, driving southward during my Solar- 
Minimum Natural VLF Radio recording expedition (featured recordings are on my 2000 album: 'Auroral Chorus II'). (Initially, I thought this beacon was 306 kHz via 
my ICF-7600D as I had no beacon listing of it with me on the trip.). M5_306.jpg 23,902 bytes. 




■A,- 








224 N5 - Rocky Mountain House, Alberta [McGreevy 
9/93] 


H N5 224, Rocky Mountain House, Alberta. Gail and I drove right to the 

RMH airport looking for 411 RM (which was apparantly off the air) and saw this little beacon similar to all the other small, number-letter beacon installations. I had 
to check the radio to ID it. S. McGreevy, September 1993. N5_224.jpg, 30,718 bytes. 


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224 N5 - Rocky Mountain House, Alberta 
(McGreevy 9/93] 


I Another view of N5 - 224, Rocky Mtn. House, AB. N5_224B.jpg, 32,100 bytes. 


^ Of L0&b ,43 







(former - possibly off-air early 2018?) 239 OJ, High level, Alberta. This 
photo was taken while (90 km/h) in-motion southbound on the Mackenzie Highway returning from the Northwest Teritories. I had previously spied this beacon while 
driving northward to the NWT, so I was prepared to take this quick (tilted) shot as I passed by it again. The beacon antenna is the taller mast on the right (telephone 
tower is the left one). I wish I had taken the time to visit this site. Weak to occasionally fair 2-hop signal in the S.F. Bay Area and eastern California, it is a quite- 
strong 1-hop signal (400 Hz USB ident modulation) in southern (Lakeview) Oregon where I also resided and monitored it (on 239.4 kHz narrowband CW/SSB 
mode) for good northward conditions. S. McGreevy, June 1996. OJ_239.jpg, 31,810 bytes. 



I (former) 320 YQF, Red Deer, Alberta. This strong, high-power NDB uses a tall self- 
supporting mast similar to many U.S. NDB's (namely, the powerful LOM/ formerly-TWEB beacons). Similar antenna mast to 239 OJ - Alberta and 320 HTN 
Montana (see HTN below). Gail and I drove many miles out of our way to find this beacon, but could not get closeer than this somewhat distant shot. Strong signal 
throughout western North America with 400 Hz USB ident modulation pitch (monitor 320.4 kHz in narrowband in CW/SSB mode) S. McGreevy, September 1993. 
320YQF.jpg 25,049. 


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kHz 9Y Pincher Creek 

airport, Alberta. Taken on 04 July 2001, this pretty beacon is located at the Pincher Creek airport. I drove right by 9Y on my way into Pincher Creek in order to get 
my van's oil-seal fixed there. This beacon employs the uppermost of three or four guy wires as its capacitance umbrella, as do many Canadian NDB's. It can be heard 
on its 400 Hz USB ident at 311.4 kHz between the US DGPS beacon data streams. Sometimes HY Hay River NWT accompanies it in good conditions. Last logged 
in the desert of Calif. Christmas morning 2005. S .P. McGreevy 



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CBK Watrous, Saskatchewan (CBC-1). Returning southward from northern Saskatchewan after my VLF Recording Expedition, and on my way toward Waterton 
Park, Alberta, I van-camped 10 miles from CBK. The next morning 03 July 2001,1 stopped by this great AM/MW radio station to take some more pictures, 
augmenting my photo collection of CBK from September 1993. 540 CBK has a gorgeous-looking white and blue painted building to the east of Watrous; their 
formerly-used open-feed has been replaced in-usage with the thick, black coaxial hard-line cable; and CBK has the largest groundwave coverage of any North 
American AM-BCB station (the second largest is 550 KFYR Bismark, North Dakota with 5 kW) - on a good car radio, the daytime groundwave from 540 CBK is 
clearly listenable from the foothills of the Rockies in Alberta well southward into the Great Plains of central South Dakota and northward up to the NWT border from 
experiences via eight road trips. Nighttime reception can be clear even in Hawaii, if western Samoa or XEWA San Luis Potosi, SLP, Mexico (etc.), are not 
interfering. During my travels in Sask. I noticed quite a number of residents tuning into CBK all over the Province - CBK's great coverage is important to the 
Canadian Broadcasting Corporation (CBC). (Local ground-conductivity at Watrous/CBK exceeds 30 mmhos! Contrast that with 0.3 mmhos ground-conductivity 
calculated in the Hilo, Hawaii [lava-geology] region from the 1060 KAHU signal measurements made in Sept. 1986 - see further below). Three views montaged. 
Moderate-resolution. 


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United States: 


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EN 389 - Kenosha. Wisconsin. US 
(on-air) Photo taken in iate June, 2014 - pic by Joe Overhuis 


389 EN - Kenosha, Wisconsin. June 
2014 - photo by Joe Overhuis (still on-air as of mid_june 2014. Note the 75 MHz dual yagi-antenna VHF inner marker beacon. 


Cos-oft 0£e+ 

^ 278 GOS Lakeview, Oregon - March 1988 - SPMcGreevy 

'f 



GOS, Lakeview (Goose Lake), Oregon. GOS is located right at the Lakeview Airport. This picture shows the snow-capped Warner Mountains in the background. 
Fine example of an older, 2-wire flat-top wire antenna with wooden poles supporting both ends. 1020 Hz DSB ident modulation pitch. This was a local pest (with 
malfunctions during windstorms) during the time I lived in Lakeview, Oregon, Oct. 1996 to July 1997, but GOS has since left the air. S. McGreevy, March 1988. 


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former) 396 BNO Burns, Oregon - June 1984 - 


SPMcGreevy. 


279 Russia FE lwbc dx 

279russia at humbolt ca coast may 93.m p3 My favorite, gorgeous recording of 279 Russia (Yuzhno_Sakhalinsk, FE_ ) (5.7 mb - 128 kbps MP3) recorded about 
0500 Calif, time or so, sometime mid-May 1993, (bfl) Patricks Point St. Park, nor. California, Kenwood-R-1000, Yaesu FRT-7700 tuner w/homebrew Jfet preamp, 
300 - to 400 foot end-fed wire trailed through shrubbery near campsite toward beach. My fave recording of lwbc dx from across Pacific Ocean - notice GOS 278 
ident in background - snippits of 270 in there whilst I tuned around, lovely recording of 'Barcelona' and bfl Russian woman speaking - so soft voice! 1995 WRTH 
says 1 megawatt! -1 can hear this regularly in Owens Vly, CA. on the active-antenna out in the field behind my house, as well as many other LWBC staions - see map 
below. S-McGreevy - 5.7 MB but high quality/hi-fi - a few minutes long in duration. 


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All Radio Rossii LWBC stations in Russia left the air on 09 January 2014. NONE of these are on-air anymore except Mongolia on 164 kHz... they were formerlly 
great DX targets and propagation indicators. 


Beacon of Interest - 404 MOG: 



(formerly 382) 404 MOG, Montague (Siskiyou County), California. Low-res. 
scan of photo taken back in June 1985, this beacon, then on a weaker 382 kHz frequency, had a whimsical-looking (to us) "inverted coathangar" antenna not seen 
before, and had TWEB (Transcribed weather broadcasts). Sometime in the mid 1990's, MOG moved up to 404 kHz and has a much bigger signal (one of California's 
biggest signals now)due to tall vertical and top. cap. hat like the newer 305 ONO Oregon installation (see further below for those installations) or the power was 
increased dramatically. Mount Shasta makes for a gorgeous background! S. McGreevy, June 1985. 382mog.jpg, 34,784 bytes. 


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404 MOG - Montague, Calif. - not using in verted-coathangar antenna anymore - looks 
like a verticai now 



® 2011Go ° 3fe ^.Google 

Image ©201-1 Digital Globe 

Imagery Date: 12/42002 & | 1998 | 4l n 43'3$,32" N 122^8'53.75" W etev 2631 U kyealt 3530 ft O 


382 MOG Montague, California 

(now on 404 kHz with higher power) 





^OG x-cq 




MQ& 


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highly unusual Inverted coathangar’ antenna 



390k: Very-detailed scans of 4 original prints I took of the (former) 382 MOG installation in June 1985 with inverted coathangar antenna! Image is 390k. Far better 
than first low-res. photo scan done 11 yrs. ago. S. McGreevy April 2007. 


Sectional chart 



Sectional chart courtesy ofSkyVector.com 
http://www.airnav.com/airport/KSIY 


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EO 400_usb_14april11 .wav 


File Variables Pointers Help 


400 kHz USB-mode - TS480, Yaesu FRT-7700 preselector/preamp, loop oriented north-west/south-east 
0340 UT - Thur. 14 April 2011 - Keeler, California by Stephen P. McGreevy - NSNKS 



(former) 254 SPK, Sparks (Reno), 

Nevada, (scans from SLIDES - that's why they look a bit funky) Another ex-TWEB beacon, now off the air, that had a powerful 400 watt signal. I used to love to 
tune in this beacon as my antenna test beacon when I lived in the SF Bay Area, and for the weather. This was a LOM to Reno-Cannon Intnl. Airport - now only 351 


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NO remains as their LIM. Large lattice mast - views of transmitter hut and base of the antenna too. 



Another image of 254 SPK. 



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Scan of print-photo of 780 KROW Reno, Nevada (now KKOH) July 1985 of their three-tower array north of Reno near SPK NDB 



Scan of print-photo of (former) 1510 KTIM San Rafael's lower tower section near some settling ponds with waterfowl 


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)U 0 

ns 


l Poivx 


i 


LATE VfjvnWfc ^ . 

4m 


"s 

y 



Scan of print-photo of a (former) 1610 TIS (Traveler's Information Station) at North Beach, Point Reyes National Seashore about 1991. This one got out very well 
owing to its high-and-clear location atop a bluff above the beach. 



H 344 BKU, Baker, Montana. Another example of an older installation, BKU has a two-wire flat-top 
antenna supported by wooden poles - these particular ones painted red and white. Fairly easily heard in California but on a crowded frequency. We had to drive a bit 
through and around the town to find this one! S. McGreevy, September 1993. BKU344.jpg, 33,393 bytes. 


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BOD - Bowman, North Dakota. BOD has guyed steel-lattice masts 
supporting a wire flat-top antenna. This beacon is harder to catch in California (on a busy frequency and does not radiate sky wave too well for the antenna size). S. 
McGreevy, September 1993. BOD374.jpg, 37,867 bytes. 


327 Cl - Chico, Calif, with 76 MHz marker antenna below [McGreevy, 
6/85] 





327 Cl - Chico, California. Standard FA A 25-watt installation, Cl has a 6-spoke 
top-cap. umbrella and self-supporting tubular mast with center loading coil, a 75 MHz marker beacon antenna is just to the right of the NDB antenna. Sheldon 
Remington, John Seamons, and myself spent a couple of hours and many miles DFing down this beacon which is hard to spot from afar and located well away from 
the airport. We had to hike in a bit to the installation, and also the temperature was about 100 deg.-F. S. McGreevy, June 1985. CI327.jpg, 39,806 bytes. 



274 CQI, Council, Idaho. This beacon was notorious in the early to mid 1980's when it 
had severe 'negative keying' on its carrier signal (its carrier dropped substantially when the ident tone was keying) leading to many reports of an unID "IAEIK" 
beacon, and CQI also radiated a well-heard negatively-keyed 7th-harmonic in the 160 meter ham band on 1918 kHz! In March 1988,1 deviated 160 miles from my 
planned route in order to see this notorious beacon, which by then was behaving almost normally. CQI then had an older flat-top wire antenna supported by wooden 
poles. During 1997 - 1999, it's ident and carrier had not been detected in California, and I think it went off the air back then, as so many NDBs are today. Photo taken 
March 1988 by S. McGreevy. CQI274.jpg, 18,250 bytes. 


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375 EMC, Winnemucca, Nevada. EMC, located about 8 miles northwest of 
Winnemucca on the dirt road to Sulphur and Jungo, Nevada, has a standard FAA tubular, center-loaded mast with an 8-spoke umbrella with wire skirt - a variant of 
the hard-to-spot standard 25-watt FAA installation (a la 327 Cl and 263 UAD, etc.). Winnemucca Mtn. is in the background, and this photo is one of my favorites. 
Sometimes, EMC has an ident malfunction, sending "EAC.". S. McGreevy, June 1987. EMC375.jpg, 31,300 bytes. (The nicer, more-recently-scanned EMC image is 
at the top of this page). 


356 FR- Medford, Oregon IM [McGreevy, 6/85) 



Medford Oregon airport. FR, a location-inner-marker (LIM) beacon installation not far from the northern end of the MFR runway, FR uses a single-wire flat-top 
antenna. S. McGreevy, June 1985. (See 373 MF Medford below.) 


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MF, Medford Oregon area. MF, a location-outer-marker (LOM) beacon installation, is 
similar to FR above. Note the back-up fiberglass mast antenna! Two photos in this image, and John Seamons - KF6VO; Steve McGreevy - N6NKS; and Shel 
Remington - formerly NI6E / now KH6SR are in the top photo in front of the beacon with two Sony ICF-7600D's (gray-market model equiv. to the ICF-2002). We 
used the Sony's to DF this beacon. S.P. McGreevy June 1985. 


219 GNA - Grants Pass, Oregon xmtr hut and one pole 
support of the flat-top antenna visible [McGreevy 6/85] 



I (former) 219 GNA, Grants Pass (Merlin) Oregon We had to DF this one in order to find 
it. GNA uses a 2-wire flat-top antenna and wooden support poles, well hidden in a pine woodland. S. McGreevy, June 1985. GNA219.jpg, 25,293 bytes. 


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11 HDG, Gooding, Idaho HDG has a large flat-top wire antenna and fairly tall guyed lattice masts suporting the 
flat-top antenna - large so it can radiate on this relatively low NDB frequency. Located next ot the Gooding airport. Photographed late May 1984 by Stephen 
McGreevy. HDG211A.jpg, 19,948 bytes 


211 HDG - 
Gooding, Idaho 
- better view of 
antenna and 
feedline 
[McGreevy 
5/84] 



M211 HDG, Gooding, Idaho. Another view of HDG. HDG211B.jpg, 23,234 bytes 


392 HEI - Hettinger, North Dakota [McGreevy 
9/93] 


Hfl- 

fJX> 

*l/V 



l(former) 392 HEI, Hettinger, North Dakota. HEI used to radiate very well 
and was heard well throughout California and within 1-hop range (within 1300 miles). Also heard well in Hawaii by myself and others. HEI used a fairly standard, 
old-style 2-wire flat-top supported by wooden poles. S. McGreevy, 9/93. HEI392.jpg, 30,838 bytes 


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(former) 320 HTN, Miles City, Montana: Like most former medium and high-powered TWEB (Transcribed WEather Broadcasts) outlets, HTN has a lattice antenna 
mast. HTN also has an elevated ground-counterpoise to aid in signal radiation (this photo), and owing to frequent high winds in this part of the High Plains/badlands 
country, HTN has its mast guyed (see the next HTN photo)! Gail and I had to do quite a bit of searching and DFing to get to this beacon - the large mast was easy to 
spot miles away, however, it took time to find the right road through strange terrain to get to it. S. McGreevy, 9/93. HTN320.jpg, 68,983 bytes 


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320 HTN - Miles City, MT [McGreevy 9/93] 


M(former) 320 HTN, Miles City, Montana. View of entire installation, including the antenna mast, guy 
wires and surrounding fields. S. McGreevy, 9/93. HTN320B.jpg, 35,078 bytes 



322 IA- Portland [Troutdale], Oregon (McGreevy 3/88] 


B332 IA, Portland (Troutdale), Oregon. IA (later "PD") has a single-wire flat-top antenna 
and is visible just to the north side of 1-84. When I visited, there was moss hanging from the antenna wire! S. McGreevy, 3/88. IA332.jpg, 20,819 bytes 


296 LGD - La Grande, 
Oregon. Transmitter hut 
and twin-wire vertical 
antenna feed (McGreevy, 
3/88) 



296 LGD, La Grande, Oregon. This is a view of the transmitter hut and feedline to the two-wire flat-top 
antenna. As you can see in the photo, it was snowing in spots all around me when I took this photo March 1988 the same day after visiting 274 CQI Council, Idaho 
and 303 ONO Ontario, Oregon. LGD is an aeronautical beacon within the marine DGPS marine-sub-band of 285 - 325 kHz, ansd so it now suffers considerable 
DGPS interference, thus requiring narrowband receiving techniques to clear up its ident. LGD296A.jpg, 39,810 bytes 


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296 LGD - La Grande, Oregon. Xmtr hut and 
one of the two antenna support poles visible 
[McGreevy, 3/88) 



former) 296 

poles supporting LGD's wire flat-top antenna. S. McGreevy, 3/88. 


LGD, La Grande, Oregon. A more distant view of the transmitter hut and one of the two wooden 
LGD296B.jpg, 32,559 bytes 



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100 kHz (Middletown, California) Loran-C 
M ^ August 1993 - SPMcGreevy 

oo^r^'i Cft 

h' . 

VZ? 


slave-station 


10 tovp ViS . 


(former) Middletown, California LORAN-C (100 kHz) Slave-station: Gail and I were cruising around the area in August 1993 and decided to pay the U.S. Coast 
Guard run LORAN-C radionavigation station a visit. We were told to leave at once by a very impolite USCG man, surprisingly so very unlike our Omega visit in 
North Dakota in Sept. 1993 which was way-more friendly. Before we asked to visit and were turned away, I took this photo of the base of the huge (700 foot-tall) 
antenna mast, with three of its top-capacitance-hat (umbrella) guywires visible behing the mast. S. McGreevy, 8/93. loranc.jpg, 47,388 bytes 


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374 LV - Livermore, CA (McGreevy 
4/851 





former) 374 LV, Livermore, California. A good spring 1985 picture of LV's small, three-wire flat-top antenna fed 
by one vertical wire attached only to the middle flat-top wire. Two wooden poles support the antenna. Being an old photo, this antenna may have been replaced by a 
newer free-standing tubular mast antenna with the umbrella top-cap. hat, like 375 EMC, Nevada, 263 UAD, Calif., etc. S. McGreevy, 4/85. LV374.jpg, 27,436 bytes 




antenna -1 had to tape the two prints together get just the left-half of LYI's (2-wire) flat-top "T-wire" antenna in view. LYI no doubt uses locally cut timber from the 
nearby National Forest for its three antenna support poles (the right-side of the antenna is not visible in this two-photo panorama. LYI gets out the best amongst the 
414 kHz western US beacons, no doubt due to its relatively large antenna. This one took some time DFing and walking-to through the woods! S. McGreevy, 9/93 
LYI414.jpg, 42,546 bytes 


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310 MB - Morrow Bay, CA. 
Vertical whip antenna. 

Former marine marker NDB I 
now defunct. Old NDB site 
visible on jetty in distant 
background (McGreevy, 1/08) 



l(former) 310 MB, Morrow Bay, California. MB is a former marine marker NDB and used a vertical whip 
antenna. A former installation farther out on the jetty is seen in the distant background - probably too difficult to maintain in the wave spray! MB is off the air- 
replaced by the USCG DGPS beacon system in the marine 285 - 325 kHz sub-band. Photo by S. McGreevy, 1/88. MB310.jpg, 26,888 bytes 



(former) 307 N, Noyo Harbor (Ft. Bragg), California (former marine marker beacon). N is another example of a small 
marker beacon situated in harbors and jettys. It also employed the standard USCG fiberglass-whip vertical antenna. The transmitter hut is also fiberglass. This 10-watt 
beacon was taken off the air in the early 90's, replaced by the DGPS system in the marine sub-band. S. McGreevy 4/87. N307.jpg, 21,932 bytes. 



NO, Reno, Nevada. (FORMER)(LIM beacon on approach corridor to Reno-Cannon 
International Airport) 'NO' employed a single-wire flattop antenna supported by short wooden poles. It was located just north of the approach lights to the airport 
runway across Rock Blvd. This beacon used to radiate remarkably well in western North America for its listed 25 watts. Off-air in 2013. S. McGreevy, 10/87. 
N0351.jpg, 22,627 bytes. 


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NQ351B.jpg, 22,272 bytes 


former) Another view of the former 351 NO, Reno, Nevada. S. McGreevy, 10/87. 


P?35Q usb 1 lap rill 1 .wav 

□0a 

File Variables Pointers Help 



350.0 USB - RadioShack DX-394, homebrew loopstick-preselector, 100 ft. / 30 meter 
11 April 2011 - 1104 UT - Keeler, Calif, by Stephen P. McGreevy - N6NKS 


352.0 








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351.0 SWU-ldaho Falls, ID 




350.4 MV - Enderby, BC 


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Analyze File 

Time (msec): 00000 +/- 00 

Frequency (Hz): 00000 +/- 00 

Signal Level (dB) 000 


Display Band (Hz): 0 to 5512 

Display Channels : Stereo (Left) 

Sample Rate (Hz): 44100 

Sample Length (kb): 5298 


Play | Play Wdw jl 

Toggle Grid 

Stop 


Omega "D" North Dakota - Sept. 1993: 


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Omega "O' La Moure. North Dakota - September 1993 - SPMcGreevy 


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uwegwj-Q w.&etcorA 

Omega Station "D" Lamoure, ND. USA - Sept. 1993 - SPMcGreevy 



USCG OMEGA Station-D, La Moure North 
DakotA (McGreevy 9/93) 



41 m ®"*™(former) Omega-D, La Moure, North Dakota. A distant view of the 1200-foot tall antenna 
taken from near the entrance road to the installation, on 23 Sept. 1993. Omega-Station-D, one of eight Omega transmitters worldwide transmitting in the 10.2 - 13.8 
kHz range, left the air at 0300 UT on 30 September 1997 /this link is to an article on this ) .The USCG personnel at Omega-D were VERY hospitable, and took us on a 
nice tour of the facility and even partook in a group photo, holding two of my WR-3 receivers. At the time we were visiting, the transmiter was down for routine- 
maintenance that very day, and we listened to the beeping sounds of Omega-C Hawaii. - a truly fine group of people there in September 1993! 


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Since this visit, Ome g a was shut-down Sept. 1997 . 

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OMEGA-D TOUR, 


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ONO, Ontario, Oregon, March 1988. This is a photo of ONO's former antenna, a 
single-wire flat-top, when I made my first visit to ONO on my way from 274 CQI Council, Idaho earlier that day in March 1988. ONO is next to a golf course. The 
FAA has slowly been replacing aging wire and post antennas with newer free-standing tubular masts with the umbrella top capacitance hat. See the next photo for a 
look at ONO in late September 1993. S. McGreeevy, 3/88. ONO305A.jpg, 27,062 bytes. 


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305 ONO, Ontario, Oregon, September 1993. This photo shows the replacement antenna, a tall and hefty tubular antenna mast and 16-spoke umbrella top. cap. hat 


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with a wire skirt - a hitherto unseen antenna type by me, but one that I am aware of that is replacing the wire antenna installations. 30-watt (listed) ONO gets out very 
well, often mixing with RO Roswell, New Mexico - once the two beacons are surrounded/buried by the slow-speed digital data sounds of the DGPS system, as both 
aeronautical beacons reside in the marine sub-band of 285-325 kHz. Happily in early 2018 305 ONO and RO (Roswell, NM) mix together as always in the clear now 
that all but the USCG DGPS beacons have left-air. I am not sure if ONO's signal level changed when the antenna replacement was made in the early 90s - it was a 
good signal back in 1988 and earlier, too. (February 2019: Still on-air and now in the clear again now that the 305 kHz Bakersfield DGPS station is off-air). (This 
antenna would make a fine LowFER beacon installation!). S. McGreevy, 9/93. 



366 PLV, Wilsonville, Oregon. PLV was easily spotted on Interstate 5 about 30 miles south of Portland 
in 1988 and a pass-by in 1990. This beacon employed a guyed steel-lattice mast and 7-spoke top. capacitance hat without the skirt wire. I have not seen this particualr 
variation of an NDB antenna before. Please see next photo below, too. S. McGreevy 3/88. PLV366.jpg, 27,548 bytes. 



366 PLV, Wilson ville, Oregon. This is a view of PLV's transmitter enclosure and heatsink, the feedline 
to the tuning system and antenna mast feedline. The antenna was shiny and new, but the transmitter box looked vaguely familiar - indeed, I had been told back in 
Burns, Oregon earlier that week that the old 396 BNO (off-air now, replaced by a VOR) beacon transmitter was now in use at PLV! (Sheldon Remington and I had 
visited BNO back in May 1984 when it was on the air still). S. McGreevy, 3/88. PLV366B.jpg, 31,385 bytes. 


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(former) 392 PNA, Pinedale, Wyoming. I liked PNA - it was often atop the 392 mixture that was 392 kHz for along time. Lately in 2014, PNA is quite alone on its 
frequency but happily still transmitting. PNA was always one of those beacons I wanted to visit someday, and so Gail and I on our big road tour of September 1993 
detoured a bit off the more direct highway to Jackson Hole and Yellowstone Nat. Park to visit PNA. PNA was right at the airport in an adjacent field. The beacon 
used a steel lattice mast, guyed, but with the top third of the three guy cables acting as a top capacitance hat/umbrella. PNW was new variant of an NDB antenna 
configuration I'd never seen before in the U.S. The gorgeous Wind River Range is in the far distance. S. McGreevy, Sept. 1993. PNA392.jpg, 45,174 bytes. 


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332 POA, Pahoa, Hawaii. POA really belts out a big signal from the Big Island of Hawaii 
- nothing like 353 LLD, Lanai, but pretty good anyway - heard easily from coastal North America and even inland when conditions are good to the Pacific. POA is 
situated just off of the Pahoa Highway, halfway between Keaau and Pahoa (Hawaiin Paradise Park), and uses a three-wire flat-top antenna, fed by one vertical wire to 







the center wire of the flat-top portion, supported by two wooden poles. This ttl second photo of POA is of one of 

the pole supports and the end of the three-wire flat-top section. Both photos by S. McGreevy, 8/86). (POA may have a new umbrella antenna by now). (POA332a.jpg 
and poa332b.jpg about 24K each.) 


POA 332 Pahoa . Hawaii dsb 331.0 kHz ) recorded 20 April 2007 at 1130ut - A quick recordin g of one POA ident made while accidently movin g the rcvr. dial - 
Kenwood R-1000 . 600 ft. wire aimed southwest , recorded at my home near Lone Pine . Calif, an an Ol ym pus di g ital voice recorder. (98 kb ) 


About 353 LLD - Lanai, Hawaii: Reception in Keeler, CA in Owens Valley (near Lone Pine, Calif.), using 600 foot, wire to southwest from my rural home has 
bagged me LLD every morning past 1000 ut (to near local sunrise) since 19 April to 22 April, 2007 very strongly - NOTE - LLD is now, for some reason, double¬ 
sideband 420 Hz modulation pitch - making them in the clear for DXers generally - check 353.42 kHz or 352.58 kHz - they are a powerful signal capable of 
penetrating well inland into North America, and all over Pacific Ocean (in the years past and up to 2016 LLD is very widely heard. Audio file of LLD is below - Steve 
mcgreevy 24 april 07 and Feb. 2014. (Heard hemispherically in 2018 even). 


263 RLL - Rolla, North Dakota (McGreeyy 9/93) 



former) 263 RLL, Rolla, North Dakota. Friend (from University) Gail 
and I van-camped (the evening after visiting Omega-D North Dakota) in a field about 10 miles north of Rolla, and about 10 miles south of the Manitoba, Canada 
border. The next morning, (September 21, 1993) I remembered that Rolla had an NDB, and scanned the Sony, finding RLL, though it seemed really weak for being 
so close - almost as weak as some of the large Canadian NDB's 500 miles away! So we rolled southward toward the airport hoping to spot the beacon, and here it 


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was. It is a rare catch in California (as it radiates poorly). One end of its two-wire flat-top antenna is supported by the airport light-beacon platform. S. McGreevy, 
9/93. RLL263.jpg, 32,678 bytes 




(former)222 MY Marysville, California. Sheldon Remington, John Seamons and myself DFed 
VlcGreevy June 1985. We then went down to the Sacramento area and visited 


356 SA Sacramento Photos from Slides June 1985. 


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407.55 kHz USB-mode - 10 April 2011 - 1035 UT - TS480, Yaesu FRT7700 preselector/preamp and Palomar VLF converter 

loop antenna oriented for max. sensitivity north/south 
By Stephen P. McGreevy - N6NKS - Keeler, California 



I Time (msec): 00000 +/- 00 Display Channels : Stereo (Left) 

I Frequency (Hz): 00000 +/- 00 Sample Rate (Hz): 44100 

| Signal Level (dB) 000 | j Sample Length (kb): 6172 



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" ■ ■■ 




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Frequency (Hz): 00000 +/- 
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Display Band (Hz): 0 to 5512 

Display Channels: Monaural 
Sample Rate (Hz): 44100 

Sample Length (kb): 4620 



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-il9 


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379 SF -SFO LIM - San Franci&co (Foster City), CA - August 1986 - SPMcGreevy 


The former 379 SF was a (literally) bayside beacon right south of the western on-ramp to the San Mateo Bridge. SF, back in July 1987 when this photo was taken, 
and it employed a three-wire flat-top antenna. It was an location inner-marker for the approach runways to SFO. There was also a 75-MHz marker installation and 
dipole antenna along with the SF beacon. This photo was taken right before I dropped Sheldon Remington (ex. NI6E/ now KH6SR) off at the airport (SFO) the day 
he was moving to Hawaii. S. McGreevy, 8/86. SF379.jpg, 24,927 bytes 


266 SL - Salem Oregon (wire-cage flat -top antenna) McGreevy 3,'88 



Salem, Oregon. SL was another unusual installation, employing a wire-cage T-configuration antenna. 


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The actual location is just on the north edge of the small town of Turner. S. McGreevy, 3/88. SL266.jpg, 18,056 bytes. In September 2009, Don Montgomery, K6LTS 
sent a (lost) updated SL photo showing a new vertical with 16-spoke top-capacity hat similat to 306 ONO Ontario, Oregon's NDB. 


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f 1 | | 



333 STI Mountain Home, tdaho - June 1984 - SPMcGreevy 



£ti 







- 333 STI Mountain Home, Idaho. Back in late May 1984 when this (Kodak 110-film!) picture was taken with a poor-quality 110-type camera, STI used a large two- 
wire flat-top wire supported by two wooden poles painted red and white (very similar to 374 BKU Baker Montana above and many older NDBs you see pictured 
herein). The antenna look a bit dilapidated when Sheldon and I visited STI, and one of the two vertical wire feeds to the flat-top section of the wire antenna was 
broken. STI still is on the air but with a somewhat reduced signal since the early-mid 1980's, and I presume the antenna has ben replaced/updated. S. McGreevy, 5/84. 
STI333.jpg, 21,190 bytes. 


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26 A SZT- Sand point Idaho [McGreevy 9/93) 


64 SZT Sandpoint, Idaho. SZT uses a large wire antenna supported by 
wooden poles - again similar to STI and BKU. S. McGreevy, 9/93. SZT264.jpg, 45,111 bytes. 


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3*1 

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i/v 

fjNe pa Uj 

lAA/0' 


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former)245 TLR, Tulare, California. This photo 
was taken by John Headlee, (formerly N6NRK) taken sometime July 1987. He didn't get closer to the NDB than this photo, but it looks like TLR uses steel-lattice 
masts supporting a one or two-wire flat-top antenna. TLR245.jpg, 23,814 bytes. 


263 UAD Chualar [Salinas), CA [McGreevy, 1/88] 





(former) 263 UAD, Chualar (Salinas), California. UAD uses a standard, 25-watt FAA 
tubular mast with center-loading coil and 6-spoke umbrella top cap. hat. S. McGreevy, 1/88. UAD263.jpg, 24,669 bytes. 


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3^ 0 

i-tf 

fL\4ct 

0 mw 


$24 U flfc- 



(former) 324 U Umpqua River Mouth, Oregon (former marine NDB). "U" was a tiny 
beacon - listed as 10 watts and under trees which really dampened-down its signal(!) - formerlly located in the parking-lot next to the mouth of the Umpqua River in 
Oregon. Marine beacons like these tiny gems have all been removed from the former marine beacon sub-band 285 to 325 kHz, replaced by the DGPS beacon system, 
which is a whole-lot more unromantic than these old Marine-marker beacons (or the fascinating-sounding sequenced beacon chains like W 304 right below) were. 
Photographed March 1988 - S.P. McGreevy. 


RAPEOBEACQNS 



Simple, low cost, 
widely available 
and reliable 
radio aid to navigation 


US Deportment «■[ 
cf Tronsportation 

United States 

Coast Guard /flV 


1980s USCG brochure about marine NDBs 


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" w 






„ M WM‘ 

March 1988 visit to 304 “Y" Yaquina Head LH, Oregon - SPMcGreevy 


I (former) 304 W, Yaquina Head 

Lighthouse (former marine NDB). "W" was one of three 304 kHz, 50/10-format-marine-sequenced beacons on the Oregon Coast. It had higher power than the other 
small harbor marker beacons shown in the pictures on this page and employed a taller whip antenna. Nice photo of the Yaquina Head Lighthouse (taken in damp 
weather). This beacon is off the air too. S. McGreevy, March 1988. W304.jpg, 22,503 bytes. 


Fascinating note from Mark (AF6IM) about navigation using these former MARINE NDBs: 

Stephen, 

I really like your natural radio website a lot. You might want to include a link to my website (link at top of page) which has first hand information on using NDBs in 
California for commercial fishboat navigation: 

https://sites. goog le.com/site/boein g 377/usin g -military-surplus-radio- g ear-on-commercial-fishin g -boats 

There was an extra feature on the Pt. Bonita NDB (and perhaps others) (the former 296 M B" Point Bonita Lighthouse beacon in Marin County - SpM) that allowed 
you to compute range in fog. All you needed was a stopwatch and a DF. The beacon was synched with the foghorn. You'd use a stop watch to measure the delay 
between arrival of the beacon tone and the foghorn and a simple speed of sound calc gave you range. I think I was perhaps the only person who actually used this in 
the 60s, but it was quite accurate and gave me position info at a critical point, entrance to S.F. I learned about it in some obscure pub like the Coast Pilot. It wasnt 
very obvious from reading the nav charts. 

I was sure sad to see the low power USCG local harbor NBBs disappear. I used them at Bodega Bay and Santa Cruz. Super useful for harbor entrance nav before 
GPS. They worked GREAT. 

Excerpt from my website: Manual RDFs were really hard to use accurately on a boat that was often yawing pitching and rolling. I longed for an ADF (such as the 
Bendix 555 or Jeppeson units), and an abundance of cheap surplus ARN 7 gear allowed me to get one dirt cheap. I liked ADF navigation and used it to full 
advantage. There was an AM broadcast station in Ft Bragg CA (KDAC 1230 with 1 kW - SpM) with a tower sited right on the coast that gave a very sharp-null 
which enabled me to always find the Noyo River entrance buoy even in pea soup fog. I'd start in slightly deeper water to avoid trouble, find the correct DF bearing 
that you'd see from the buoy and then ride the bearing into the charted depth that the buoy was anchored in. Bingo every single time even in nearly zero visibility. 

The loop compensator allowed you to zero out nearly all bearing distortion from the boats extensive metal commercial fishing rigging. It took some work to calibrate 
it properly but when set up right it worked like a charm. It was a brilliant design using a circular spring steel strip cam that you could vary the shape of with 
circumferentially spaced adjustment screws. The cam follower drove the loop selsyn and gave you corrected bearings on the I 82 indicator. 

73, 

Mark 

AF6IM 

www.parachutemobile .com 
THANKS MARK! SpM 


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TST/OVE 212 Orovilie, CA - March 19S5 - McGreevy (from slide) A day spent DFing the 

previously unID TST 212 
which turned out to be at 
the Orovilie, CA airport 



Where is TST? (DFing) March 1985 - McGreevy TST/OVE 212 Orovilie, CA - March 1985 - McGreevy (from Slide) 



(former) 212 TST/OVE Orovilie, (northern) California. Three fuzzy images from slides of a Dfing trip Sheldon Remington and myself undertook on a gorgeous and 
sunny spring day in mid-March 1985. We had heard an unID beacon on 212 kHz sending "TST" for months prior to the trip, and long-distance loop bearings (from 
North S.F. Bay Area) pointed toward Orovilie, but also toward a few other small airports in the northern Sacramento valley (colusa, etc.), and so we took a trip to find 
TST. After a day of enjoying the beautiful scenery and spring greenery along the way, we located TST at the Orovilie airport. Close-in DFing was accomplished 
using only the loopsticks of two Sony ICF-7600D portable receivers. Later that day, TST went off the air (we did meet airport personnel inquiring about this beacon 
so they must have not known it was going and switched it off!). It later returned to the air for a few years as ident OVE. Photos by S. McGreevy March 1985. 




O(former) 325 BO - Bodega Head, California - This is a former, moderately powerful 50/10 marine marker-beacon 
located high and clear atop Bodega Head near Bodega Bay-shown on charts as also an aeronautical beacon. Sheldon Remington is perched on its fence - S. 
McGreevy June 1985. 


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amnrift . ■ V m (former) 325 C - Crescent City jetty, California. This former 50/10 marine harbor-marker beacon was situated at the 

end of a jetty near Crescent City Harbor. The beacon was housed in the grey enclosure seen at the top of the light platform, and employed a 30-foot tall whip antenna 
w/o capacitance hat antenna. Photo from a slide, June 1985. (Unknown young man visitor at base of platform.) The next beacon we visited is 296 B Brookings, 
Oregon (see next). 



I (former) 296 B - Brookings Harbor, Oregon - This is another former, small 50/10 marine marker-beacon 
located at the USCG station in Brookings Harbor employing a whip antenna. Photo from slide - S. McGreevy June 1985. The next beacon we visited is aero-beacon 
396 GOL Gold Beach, Oregon (below). 


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(former) 396 GOL - Gold Beach, Oregon. GOL looks similar to a 
few Montana beacons presented in this page with red-and-white painted wooden pole supporting a T-type wire antenna. Photo from Slide, June 1985 S. McGreevy 


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mo 



I Three (former) Montana NDB's visited during June 2001 
Saskatchewan (VLF Expedition). 236 kHz FOR, Forsyth, MT, next to 1-90; 359 kHz SDY Sidney, MT; 410 kHz GDV Glendive, MT. mid-June 2001 
McGreevy. 


trip to 
-S.P. 


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File Variables Pointers Help 


359.0 kHz USB-mode, 11 April 2011 - 1020UT - Keeler, California - TS480, Yeasu FRT-7700 preselector,'preamp, loop oriented north/sonth 

by Stephen P. McGreevy - N6NKS 


tamxt RPX - Roundup, MT 
361.0 


■«eua« 


360.0 BO - Boise, ID 

SDY - Sidney, MT 


359.4 YQZ - Quesnel, BC 




359.4 YAZ 


■ 


Analyze File 

Time (msec): 00000 +/- 00 

Frequency (Hz): 00000 +/- 00 
Signal Level (dB) 000 



Display Band (Hz): 0 to 5512 

Display Channels : Stereo (Left) 

Sample Rate (Hz): 44100 

Sample Length (kb): 10080 


7 sax' 

*«e»-i2>7 rye 



SBX Shelby, Montana. I deviated from my trip southbound on 1-15, coming back from Saskatchewan to do VLF recording. July 2001. - 
resolution photo of T-antenna and wooden-pole supports from afar. 


347 

S .P. McGreevy. 92k high- 






209 AEC - central Nevada - "AEC test site Basecamp" along US Highway 6 



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(former) 209 AEC "AEC Basecamp" central Nevada. I spied this beacon while driving eastbound on US 6 on my way to Great Basin National Park June 2001.1 
turned back, flipped on my receiver and was very plesantly surprised to have 209 AEC blasting out the speaker - with AWOS voice weather saying "Basecamp" at 
each beginning of message. I have heard this for years since the late 1980's, usually mixing with HGT Hunter Ligget, Calif and a barrage of PLC's. Heard many times 
on DXpeditions throughout the intermountain west since 1984, and it has a fairly good daytime groundwave signal at my Owens Valley home, now w/o AWOS — just 
ident only. - S.P. McGreevy June 2001, July 2007. 296 kB very high-resolution, gorgeous photos. 


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201 IP - Mobile, Arizona - 26 Sept. 2006 - Kirk W. 



201 IP Mobile, Arizona Good friend Kirk W. DFed this beacon site on 26 September 2006. IP is located about 7 miles NW of Mobile, Arizona, and is solar-powered. 
193K nice-resolution photo. Photo by Kirk W. 


Kirk writes on 25 March 2008:1 have some good news regarding IP on 201 kHz. Frank informed me that this beacon is now back on the ai (ongoing as of January 
2018 monitoring - SpM. 

It had been off the air for several weeks but I checked last week and it was back in service. Not only that, it now appears to be on the air 24 hours daily. Formerly, it 
had turned off at 1900 MST every evening and remained silent all night until 0600 MST the following day. 

I wonder if this had been to conserve power, as IP receives its only power from a bank of large solar panels. (I know some other beacons that are that way, too!) I 
observed no above-ground power lines feeding the beacon in its desolate location in the Rainbow Valley, sandwiched between the Maricopa and Estrella Mountains 
in a sparse Sonoran Desert landscape. Now the beacon IP operates continuously. 

This shouldn't create a power shortage, as this is the sunniest time of the year in southern Arizona and there will now be more daylight than nighttime hours for the 
next six months. Of course, there may be unrelated technical reasons for the beacon having been QRT for a few weeks and changing its schedule. This is good news 
for you, as it gives you a better opportunity to hear IP during nighttime propagation conditions. 

The best time for you (SpM) to listen for it would most likely be just before sunrise, when noise from thunderstorms in the east has faded down but nighttime 
conditions are still in existence farther west. 

(K.W. - 25 Mar 2008) 


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RYN Ryan/Tucson, Arizona Kirk Writes in March 2008: The non-directional beacon RYN (338) is contained entirely inside the airport boundaries. As a result, access 
is blocked by a barbed wire fence and one can only approach the beacon within 100 yards. RYN is actually triple-protected by the barbed wire fence surrounding the 
air field, by a second wire fence surrounding the entire beacon's electronics and antenna structure, and by a third, small wire fence surrounding the antenna house and 
vertical wire that reaches up to the top hat. 

Prior to seeing RYN for the first time, I was actually expecting a more substantial antenna for a high-power beacon in its special 400-watt class. More specifically, I 
thought I might find a red and white vertical tower of several hundred feet (such as 254 SPK; 320 HTN; 368 SX; etc. - SpM). Instead, I (Kirk W.) found a very 
typical aeronautical NDB installation consisting of a vertical wire suspended from a two-conductor top hat strung between two wooden poles (rather hard to see in 
Kirk's photo, though). 

It was almost anticlimactic. Of course, it makes sense to keep any structures at an airport as low as possible. 

The two poles are perhaps 50 feet in height and the top hat consists of two horizontal wires, one above the other. The two horizontal top hat wires are parallel in the 
vertical, not horizontal plane. Very high voltage insulators are used to attach the top hat wires to the support poles. A small white cubical structure lies beneath the 
center of the top hat and the vertical wire appears to originate from it. 

Another, larger white cubical fiberglass-like structure lies 100 feet away near a VHF antenna structure. I wonder if the smaller structure contains just the tuning 
network and the larger structure contains the beacon electronics and its power supply. The larger cubical, boxlike structure was very reminiscent of the structure that 
exists at IP, 6 miles northwest of Mobile, AZ. (IP has been off the air since approximately Wednesday, February 6th, 2008. - back on - see above - SpM) RYN's 
antenna and top hat are basically identical in size and form to that used by IP. 

SpM writes: Cl338 RYN often battles it out at night throught the desert southwest with PBT Proberta/Red Bluff, California (audio file of PBT and RYN on 337 kHz a 
few nights ago around 19 March '08), which does employ a tall vertical mast antenna—I visited PBT in '85 - can't find the slide though... and NOTE: PBT left the air 
around December 2012. SpM 


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/A-oe 


332 IA - Trousdale (Portland/PDX) - Oregon - March 1988 - SPMcGreevy 



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(former) 100 kHz Loran-C Master Station, Searchlight, Nevada Four towers support a large capacity-hat and vertical cable antenna suspended between them. The 
towers are 721 feet tall and are located about 15 miles south of Searchlight, Nevada, 5 miles east of US Hwy 95. S.P. McGreevy 08 December 2008. 


100 kHz Loran-C station. Searchlight, Nevada, 08 Dec. 08 - McGreevy 






COAST GUARD 

LOftAN STATION 
SEARCHLIGHT. NEVADA 


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298 kHz DGPS beacon - Essex, California 08 Dec 2008 - McGreevy 



Beacon, Essex, California in the eastern Mojave Desert employs a 299 ft. mast and twelve capacity-hat wires. Located closeby the historic Old Route 66 Highway. 
S.P. McGreevy 08 December 2008. 



Mid-1986 QSL of Dave Stinson's (former) "NTS" Nevada Test Site 181.35 kHz LowFER beacon, Mercury, Nevada - CW and SSB - QRO - as much as 50 watts! 
Heard very strongly into northern Calif. - operated at the NTS until mid-1990 or so. Rare NTS hand-made QSL issue. 


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WiM faint YY-Quebec 


340.0 cluster mixture (SG-NM and others) 


340.0 SG-NM and others 


339.0 PBT 


339.0 RYN-AZ 


339.0 RYN-AZ 


339.0 LSA-TX 


Analyze File 

Time (msec): 28216 +/- 8 

Frequency (Hz): 48 +/- 5.4 
Signal Level (dB) -90 




File Variables Pointers Help 

**'»*’■■ 


Q0® 


m mw nm w nH 


Synchronized LW DX reception - 17 Jan 2011 - 0330UT 
Stephen McGreevy - N6NKS - Darwin, California 
600 ft. north-west wire 


mm i —>' i^i i m 


Michael Mideke, Hop Canyon, New Mexico 
WB6EER 


900 ft. west wire 


340.4 

mm YY - Quebec 


Display Band (Hz): 0 to 11025 

Display Channels: Stereo 
Sample Rate (Hz): 44100 

Sample Length (kb): 5100 


Play j Play Wdw 


Toggle Grid 


Stop 




Sony ICF-SW7600GR ('barefoot' loopstick only) NDB Reception aboard Silja Line Ferry amidst 
Swedish Archipelago - mid-Sept. 2009 


393 kHz LSB-mode - Sony ICF-SW7600GR with only loopstick on deck of Silja Line Ferry amongst 
Swedish Archipelago - 19 Sept. 2009 at 0530 local time - Stephen McGreevy - N6NKS 



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§ 3 B B_us b_baltic_5ea_swe de n_se ptO 9 .wav 


File Variables Pointers Help 


i 11 *i WHM iii 


330 kHz LSB-mode - Sony ICF-SW7600GR with only loopstick on deck of Silja Line Ferry amongst 
Swedish Archipelago - 19 Sept. 2003 at 0530 local time - Stephen McGreevy - N6NKS 



(former) 185.41 LowFER "OL" Keeler, Calif, local groundwave reception 11 April 2011 in Inyo Co., Calif 


Three California LOWTers - 06 August 2011 at about 2000 ut - Santa Rosa Flat, Inyo. Co., Calif. 120 cm active whip (Burhans J310 ver.j 

to Dave Curry LAFD receiver (LSB-mode) 



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0 ol_185.41 khz_in_darwin_17a p ri L11 .wav 


File Variables Pointers Help 


. « . . ii ii . 


5120 Hz + + + 


3840 Hz + + + + + + 

29 


185.41 "OL" (double DAID) in Keeler as recorded in Darwin, California, 1759 PDT 47 April 2011 23 miles ese distance 
Dave Curry Receiver, Burhans J310 active whip antenna 1.3m in length - S.P. McGreevy 

2560 Hz + + + + + + 



2 sec 4 sec 6 sec 8 sec 10 sec 12 sec 


After loading-coil-system improvement. 


"R" LowFER - Keeler, Calif. -182.448 kHz (2012 to 2018): 


0.182. 44B^r_kee le r Jitijcfi i nt j£]at mrof Ij5ian1 2 .wav |^] | 


File Variables Pointers Help 



5120 Hz + + + + + + + + + 


182.448 kHz "R" Keeler, California recorded at a site 13miles/21km east-southeast of the beacon about noon, 
15 January 2012 - Dave Curry "LAPD" rx, Burhans J310 active whip (1.5 M whip) 

3840 Hz + + + + + + + + + 



182.448 kHz "R" lowfer -1130 - 1430 UT daily winter 2012 / occ 2018!. 


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A lovely dawn in Keeler with my 160m vert, and 75m inv. L tied together for the R-beacon Lowfer 
xmiting - 2013. 


Reception of two LowFERs at reward Mine, Inyo Co., CA 
1280 Hz +30 Dec, 201 about noojji PST + 



WD2XFJ Burbank, CA (183.50 kHz) 

, 


6 sec 


S3 


8 sec 




I have not been doing very much nor consitent LF-transmitting the winters of 2013-2019 except for very-brief DX tests of the R- 
Lowfer ground wave signal, preferring the lower Medfer/MW band - SpM). 


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Hawaii: 


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Scan of four photos of the WWVH Time and Frequency-standard station on Kauai, Hawaii (to the west/northwest of Kekaha, Kauai) 
photographed during a visit in January 1986 by S.P. McGreevy 



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K H B C 


A scan of four photos of the of the rather spartan but brand-new "studio" and transmitter shack of (in testing-phase) 1060 KAHU 
Hilo, Hawaii Island, photographed during my time in Hilo when I was doing a lot of DXing there on LW and MW, and was a member 
of the Big Island Amateur Radio Club in Hilo - a fine bunch then! I also had fun with Dean Manley, KH6B doing initial field-strength 
measurements of KAHU all over the area during September 1986. SpM. - just 10 miles from KAHU, Mexico City creamed their 
signal and even in north Hilo the 200 kW Mexican station (en La Grande Ciudad de Mexico) could be heard underneath KAHU. 
Ground conductivity in the region was measured via field-strength curves at (only because of poor ground-conductivity lava 
terrain/geology) = ~0.3 mmhos! - SpM. Additionally, KAHU employed only a 1/5 wave tall mast due to close proximity to Hilo 
Airport (Gnl. Lyman Field) and could only put out a bit over 900 watts, also (nominally 1 kW). 1060 KAHU Hilo recorded with 
Hawaiian D . I durin g their October 1986 testin g phase - recorded at 667 Wainaku Avenue . Hilo by SP McGreev v 


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September 1986 Hilo, Hawaii (Hawaiian Homeland Owned) 1060 KAHU (900 watts) to 1/5 wave vertical - initial testing and on-air 
broadcasts - SP McGreevy - N6NKS - Sept. 1986 


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DX and LW-MW DXpeditioning in Hawaii: 



awaii DX 


: rom Hawaii 


Hawaii Island - 0iina District - S* P. McGreevy - IS 


roadcast-band 

1986 to 1991 


Stephen P. 


1) The Best of Hawaiian Mediumwave DX -1986 to 1991 - S.P. McGreev y. N6NKS at archive.or g ( Internet Archives ) 



2 ) Click Photo or thislink to g o to Internet Archives site to listen to audio-files (MP3) of mv latest Mediumwave/AM Broadcastband 

DXpedition (15-21 November 2010) to north-east Oahu . Hawaii! 

( http: llww w.archi v e .or g /details/Ha waiiMedium wa veDxpeditionN o v ember2010 ). 

M v two Internet Archives Hawaii DX pag es and the photos therein are Dedicated to Dr. Richard E. Wood - PhD , a g ood friend I met in person be g innin g in 
Aug ust 1986. This is a photo of Richard and his humble fruit stand in Keaau , Hawaii , September 1986 ad j acent to the old Feed-Su ppl y store buildin g . Later 


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he would develop a website and he would expand to two fruit stands on Hawaii Island. 



November 2010 Oahu . Hawaii DXpedition: Another g lorious Hawaiian Sunrise 19 Nov. 2010 (on n.e. Oahu near Kahuku) after a wonderful ni g ht of DXin g 
the MW/AM BCB! (click ima g e to g o to the Internet Archives pag e of this November 2010 Loop Antenna DXpedition ) 



ship on the sea with Farallon Isl. in background - you can see out 100 miles to the horizon - photo taken from Firtop Hill in the Point Reyes Nat. Seashore in late 80's 
- S. McGreevy -1 love photography too! 


Nearly all Photos and this page curated by Stephen P. McGreevy, N6NKS, P.O. Box 75, Keeler, CA93530. Page first completed 20 March 1999 (updated 25 January 
2018). I wish you all good NDB visiting and DXing! 


Natural ELF-VLF Radio & Radio-DXin g Website Top Pa ge 


Stephen P. McGreevy NDB Gallery Page Count Beginning on 08 April 2010 at 1400z: 



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